Epson EB-U50, 3700 ANSI lumens, 3LCD, WUXGA (1920x1200), 16000:1, 16:10, 1.1 - 11 m Epson EB-U50. Projector brightness: 3700 ANSI lumens, Projection technology: 3LCD, Projector native resolution: WUXGA (1920x1200). Light source type: Lamp, Service life of light source: 10000 h, Service life of light source (economic mode): 17000 h. Focal length range: 20.42 - 24.5 mm. Serial interface type: RS-232C. Noise level: 37 dB, Noise level (economic mode): 28 dB